I have read the raws up to chapter 29. He doesn't cry all the time. I don't think he thinks of the women as anything other than friends (so far at least). He's trying to make a living and think about his future most of the time.

He does seem to have a purpose, and his has so much stress. I would've broke down and cried too if I was in his shoes.

Spoiler (highlight to view)

It seems like his "sister" is his most important person, and he wants to be independent so he can protect her. This might be just because I like Kyoko and I'm reading into that one page from that chapter too much.